The grounds — which are the final resting spot for 19 senators, 71 House members and former Vice President Elbridge Gerry — will open to the public and their pups for games, contests and pet and adoption vendors on Sept. 21.

The pooch-friendly day will be a special privilege for regular pups — the Capitol Hill cemetery typically only allows members of the K9 Corps to walk around the E Street landmark.

The canine-filled festivities aren’t the first time the cemetery is welcoming four-legged visitors.

Earlier this month, a herd of more than 100 live “eco” goats grazed the perimeter of the cemetery in an attempt to clear the area of invasive species.